Gas-burner for stoves or fire-places



(No Model.)

. T. MQSWEENEY. GAS BURNER FOR STOVE$ OR FIRE PLACES.

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UNITED STATES ATENT OEEIcE.

TERRENCE MCS\VEENEY, OF%ALLEGHENY, PENNSYLVANIA. I

GAS-BU RN ER FOR STQVES OR Fl RE-PLACES.

SPECIFICATION forming part Of Letters Patent N0. 406,229, dated July 2, 1889. Application filed February 11, 188:9, Serial No, 299,480- (No model.)

To aZZ whom it may concern.-

Be it known that I, TERRENoE MCSWEENEY, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented or discovered certain new and useful Improvements in Gas-i Burners for Stoves or Fire-Places, of which; improvements the following is a specification;

The object of my invention is to provide an apparatus of simple and comparatively inex-l pensive construction by the employment of; which the combustion of gaseous fuel maybe thoroughly and economically effected and the escaping products of combustion utilized as far as practicable by the evolution ,of heat therefrom.

To this end my invention, generally stated,j consists in certain novel devices and combi-' nations, including a vertical mixing and heating chamber, a series of horizontal burner pipes placed one above another and communicatin g with said chamber, a series of retarding and radiating plates adjoining the b urnerpipes, an inclosed air-heating passage adjoining the mixing and heating chamber, and a series of air-supply passages leading from said passage to points adjacent to the burnerpipes. I

The improvements claimed are hereinafter fully set forth.

In the accompanying drawings, Figure l is a front view, in elevation, of a fire-place embodying my invention; Fig. 2, a vertical cen3 tral section through the same, and Fig. 3 a horizontal section at the line 0000 of Fig. 2.

My improvements are herein illustrated as applied in connection with a fire-place of the class of those in which open grates for solid fuel are ordinarily employed, but are applicable without change of structural or operative principle in stoves and other heating appliances.

In the practice of my invention I providea plate or frame 1, which rests upon legs or standards 2 at a proper height above the level of the floor, and serves to support a vertical mixing and heating chamber 3, which is formed of suitable material refractory within the limit of temperature resultant upon (30111-1 bustion, as, preferably, cast-iron, and is of substantiallyrectangular section. A flaring or conical mouth-piece 4, which is connected to' a nozzle or opening in the bottom of the chamber, surrounds the delivery-opening of the gas-supply pipe 5, forming what is ordina'rily known as a mixer. The supply of air requisite for admixture with the gas is drawn into the chamber 3 through the mixer with and by the pressure of the inflowing gas, the gas and air being mingled within the chamber in their passage through the same to the burner openings communicating therewith,

to be presently described.

A series of horizontal burner-pipes 6 is arranged in front of and adjacent to the mixing and heating chamber said pipes being 10- cated one above another and each being perforated with a series of burner-openings 7 011 itsupper side. Each burnenpipe communicates, at .or near its ends with the chamber 3 .by nipples or connecting-pipes S, and in order to properly distribute the mingled air and gas throughout the series of burner-pipes the orificeslin the chamber with which the pipes 8 communicate are graduated in size, decreasing in diameter from the lowest to the highest of the series. For the purpose of retarding the products of. combustion in their passage to the chimney-flue, and thereby preventing waste of heat, as well as to provide an extended area of heat-radiating surface, a series of retarding and radiating plates 9 is supported in front of the chamber 3 above the several burner-pipes. The plates 9 abut at their inner ends against the front of the burner-chamber and are downwardly-inclined therefrom, and are further provided with a series of openings or perforations, which may be shaped and arranged in any preferred ornamental design.

It will be seen that a retarding and radiating plate is located above the burner-openings of each burner-pipe of the series, and

that by the surface thus presented the heat of the products of combustion is effectively taken up and radiated into the apartment. The plates may be supported at their ends on ledges or shoulders 011 the side jambs of the fire-place, so as to be readily put in place and removed.

An air-heating passage 10, which is closed at its rear, sides, and top, is formed adjacent to the rear side of the mixing and heating chamber 3, said passage being either inclosed by a sheet-metal casing or by the walls of the fire-place when the same is of such shape as to allow of its utilization when closed in front by the chamber 3 for such purpose. Air which enters the passage 10 below the chamber 3 is heated in its upward traverse through the passage 10 by contact with the heated chamber 3 and is delivered adjacent to the burneropenings to promote combustion thereat by a series of air-supply passages 11, which extend through the chamber 3, said passages being arranged in horizontal rows in planes nearly coinciding with those of the several burner-pipes.

My improvements are readily applicable without material expense to fire-places 0f the ordinary construction, and in operation haye been found to effect a thorough combustion of the gas, which is advantageously utilized by reason of the extended surface provided by the front wall of the chamber 3 and the radiating and retarding plates 9 and the obstruction presented by the latter to the rapid escape of the products of combustion, thus obviating waste of heat due thereto. The series of burner-pipes admits of such an equal distribution of heat as will render a lower pressure of gas effective than that re quired to force the flame toward the upper portion of the fire-place, as in the employment of ordinary burners, and the chamber 3 serving as a reservoir for the admixture and heating of gas and air the volume of the mixture thei ein acts as a cushion to the inflowing gas and air and considerably reduces the noise which attends combustion with burners of the ordinary type.

I claim as my invention and desire to secure by Letters Patent 1. The combination of a vertical mixing and heating chamber, a mixer communicating with said chamber at its lower end, a series of perforated burner-mp0s located adjacent to the front of the chamber and communicating therewith, and a series of retarding and radiating plates supported one above another adjacent to the burner-pipes, substantially as set forth.

2. The combination of a vertical mixing and heating chamber, a mixer communicating with said chamber at its lower end, anda series of burner-pipes provided with burneropenings and located adjacent to the front of the chamber, said pipes communicating with the chamber through openings which increase gradually in diameter from the highest to the lowestof the series, substantially as set forth. The combination of a vertical -mixing and heating chamber, a mixer communicating with said chamber at its lower end, a series of perforated burner-pipes located adjacent to the front of the chamber and communicating therewith, an inclosed air-heating passage open at bottom and adjoining the rear of the chamber, and a series of airsupply passages leading through the chamber from said air heating passage to points adjacent to the burner-pipes, substantially as set forth.

4. The combination of a vertical mixing and heating chamber, a mixer communicating with said chamber at its lower end, a series of perforated burner-pipes located adjacent to the front of the chamber and comnninicating therewith, and a series of perforated retarding and radiating plates supported one above the other adjacent to the burner-pipes and inclined downwardly and outwardly from the front of the chamber, substantially as set forth.

In testimony whereof I have hereunto set my hand.

TERRENOE MCSWEENE Y.

\Vitne'sses:

J. SNOWDEN BELL, R. H. WHITTLESEY. 

